Martin,
You should certainly talk to your urologist about your concern.
Bladder cancer can have similar symptoms to a UTI and be intermittent. So, it could have been what you thought were UTIs were really symptoms being caused by the bladder cancer tumor.
Just because there was no bacteria 6 weeks ago, doesn't mean there isn't bacteria now. Did your uro do a urine culture? Just because you have symptoms of UTI, it still doesn't necessarily mean you have a UTI.
When was your TURBT? Did you have a follow up TURBT yet or is it scheduled? Any diagnosis of T1 should have a follow-up TURBT around 6 weeks after the first TURBT.
Untreated UTIs can be dangerous. The infection can move to the kidneys and beyond and then they are much harder to treat. The point being that you should consult your urologist whenever you think you have a UTI and he/she can explain the importance of treatment and the potential dangers of not treating them.
If they did not do a culture, then it may or may not be a UTI. It could be another symptom from the bladder cancer so it is certainly not something to be ignored. You should certainly see your urologist and get a culture if you haven't already.
I know I had cases prior to being diagnosed with bladder cancer that I thought I had a UTI and went to urgent care and was put on antibiotics but they came back a couple of days later and said there was no infection. That went on for a year and half or so until I finally went to a urologist as was diagnosed with bladder cancer.
Mike
Age 54
10/31/06 dx CIS (TisG3) non-invasive (at 47)
9/19/08 TURB/TUIP dx Invasive T2G3
10/8/08 RC neobladder(at 49)
2/15/13 T4G3N3M1 distant metastases(at 53)
9/2013 finished chemo -cancer free again
1/2014 ct scan results....distant mets
2/2014 ct result...spread to liver, kidneys, and lymph...